title: [Dental calculus reduction with EHDP? A long-term clinical study].
mesh_terms: D002986:Clinical Trials as Topic; D003728:Dental Calculus / Q000517:prevention & control*; D004311:Double-Blind Method; D012968:Etidronic Acid / Q000627:therapeutic use*; D006801:Humans; D013997:Time Factors; D014100:Toothpastes / Q000627:therapeutic use
chemical_list: D014100:Toothpastes; D012968:Etidronic Acid
vernacular_title: Zahnsteinreduktion mit HEDP? Eine klinische Langzeitstudie.